Universal lock



Sept. 11,1928.

F. C. VOM BRUCK UNIVERSAL LOCK Filed Sept. 1. 1921 Fig.2.

INVENTOR Patented Sept. 11, 1928 ,UNITEDSTATES PATENT OFFICE.

FRIEDRICH CARL VOM BRUCK, 0F DUSSELDGRFQGE RMAN'Y, ASSIGNOR, BY MESN E AS v SIGNMENTS, TO THE FIRM STANLEY VVOBKSGESELLSCHAFT MIT BESCHRKNKTER HAFTUNG, 0F GERMANY.

UNIVERSAL max.

7 Application filed September 1, 1921, Serial N0. 497,811, and in Germany January 2 8, 1919.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARQH 3, 1921, 41 STATTTJQ, 1313,)

The object of the invention isto provide a lock which is chiefly dapted to be used for furniture in all possible cases and which inclusive of the key with the aid of the simplest means can beproduced in an exceedingly accurate and cheap manner. In order to solvethe problem according to the invention several provisions have been made.

Firstly the lock has been made suitable to act as a right-and left-hand lock and this is preferably achieved by providing an obstacle which can easily be moved to and fro for preventing a pushing through of the key.

This obstacle according to the invention consists ofia ring which caneasily bemade to slide along the sleeve of the key.

Furthermore according to the invention, the lock by means of speoiallcdges can. be madeto be used asa mortise lock or as a rabbeted.or flush lock.

In addition thereto in accordance with the invention a nut turnable with a locking of the latch has been provided, said nut enabling the bolt-lock to, be used at the sametime as a bar lock. i a 4 M Through the use of the siidable obstacle the use of pipe-keys may be dispensed with and keys with uncurved bits maybe em-. ployed. Y

The lock-latch according to a further part of the invention is formed in such a manner that in a U-shaped latch-head a filling piece isinserted and rigidly connected to the latchhead preferably by providing projections or recesses on the filling piece or latch-head spectively which by means of pressing are rigidly united with each other. v

The lock-latch according to the invention is suitably guided 011 tongues stamped out from the lock frame, said tongues running preferably in the direction of displacement of the lock-latch.

The tumblers are also according to the invention in an exceedingly simple manner connected to their springs byfirst stamping the tumblers inclusive .of a slot ending with an enlargement and by inserting a spring having a bent up portion into said slot and uniting it with the tumbler by pressing the slot together.

Also the key-sleeve is'according to the invention produced in a most simple manner by reversely.-

telescopingtwo or more sleeves of different lengths made or sheet llOIlfWlllCll in the prop er position to each other are held'by a simple punching, whereby suitably one of the sleeves V is fitted with a bore for receiving the punched I Fig. l is aside view of a loclzplacedas a mortise lock in a lock plate specially fitted with a ledge and with a casing lid removed, Fig; 1 a planof the lock with ledge, shown in Fig. 1, v V

Fig; l, the plan of a latch with latch head, Fig. 2 the view of the lockshown in F ig.-1 but reversed and. with placed-on'caseelid, so that the lock-latch projects to theright. instead of to the left, Fig. 2* being an end view of the mortise face plate,

. F ig. 3, is a sectionalong theline A513 of F I 1 Fig. 4, a section along the line- CD of Fig; 2, v

I Fig. 5,.a section throughthekey shaft, .Fig. 6, the longitudinalsection. ofakey sleeve,

Fig. 6, across section along-the line of Fig. 6,

Fig. 7 shows a tumbler according to the invention and the tumbler spring previous to their being united with each other.

The lock casing a a is in Figs. 1 and 1 connected to a special plate 6 which is fitted with a ledge 0' so that the lock in this form may be used as a rabbeted lock.

In Fig. 2 the lock plate Z) according to Fig.

2" has no side prolongation, so that in this case the lock may be used as a mostisc look.

In Fig. 3 the key (Z has been inserted into the lock from the left and in 4 from the right. Thus the lock is used in one case as a right hand and in the other case as a left hand lock.

- In order to prevent a pushing-through of the key when the lock is being used as a rightor left-hand look, a ring 0 is shown which may be made to slide on the key sleeve from the righthand and to the left hand end and The key-bit is fitted with a groove 9 for the ring 6, so that the bit can be made to'act engage with the door frame and thus lock the door or the like when the key is turned.

The key-shaft according to the invention is provided with a strengthening rib m which imparts a considerable strengthening effect to the thin key-shaft which owing to the dis pensing of the pipe-key may be usedespecially in a rightand left-hand lock. Particularly with this key it is possible to produce it in one preliminary and one finished form pressing from a form piece stamped from strong sheet iron, and preferably preliminarily scrubbed in arotating drum contain ing a solution of acid. Hereby an exceeding.

ly neat and cheap key is produced, the smooth and hard polish of it making it extraordinarily well able to resist the formation of rust.

The key-sleeve shown in Figs. 6 and (5 is formed of two telescoping parts 11., 0, bent from sheet iron into a tubular shape, one of them being shorter than the other and the longer one serving as a key guide inthe lock casing. One part is fitted, with a hole 12 to which the other part is fastened byway of a punching g.

In Figs. 1 and 2the lock casing is fitted with two fiat pieces or lugs 9 which when stamping the casing are simultaneously formed and which serve as a guide for the latch. Preferably these lugs are arranged in such a manner that they extend in the direction of the displacement of the latch.

Claims. g

1, In'a look, a key-sleeve, a ring slidahle on said key-sleeve for preventing the key from being pushed through, substantially as described.

2. In a lock, a key-sleeve, a stop slidable on said key-sleeve, substantially. as described. 1

3. In a lock, a ring slidahle on a key sleeve, a key and in the bit of the key a groove corresponding to the height of the said ring.

4. In a lock, :1 case plate, a latch, and flats stamped from the case plate adapted to be onclosed by openings in the said latch so as to guide the latter in being displaced.

. 5. In a look, a case plate, a latch, and narrow flat pieces arranged in the direction of displacement of thelatch stamped from the case plate adapted to be enclosed by openings in the latch.

.6. In a lock, a key sleeve formed out of a plurality of bent sheet iron pieces which are assembled by telescoping.

'7. In a lock, key sleeve formed out of a plurality of telescoped sleeves of different lengths made of sheet iron.

8. In a look, a key sleeve formed out of a plurality of telescoped sleeves of diflerent lengths made of sheet iron connected to each other by punching. V

9. In a look, a key sleeve formed out of a plurality of .telescoped sleeves of difierent lengths made of sheet iron, and a hole in one or the sleeves adaptedto receive a punching of another sleeve.

10. In a universal lock, the combination with a casing having a plate whereby it is adapted to be used as a mortise lock, and means for fitting a ledge to the casing thereby converting it into a rabbeted lock.

In testimony whereof I have afiixed my signature. i

FRIEDR. CARL VOM BRUCK. 

